METREL MD 9240 Bedienungsanleitung Seite 12

MD 9240 True RMS Power Clamp Meter
Measuring 3-Phase 4-Wire (3
In both un-balanced and balanced load cases, 3-Phase 4-Wire (3
measure the phase-to-neutral powers kW
illustrated. System (total) power kW
powers. That is:
• kW
= kW
Total
In balanced load cases, 3-Phase 4-Wire (3
parameters can be simplified to three times of any of the phase-to-neutral powers. That
is:
kW = 3 x kW
•
Total
kVA = 3 x kVA
•
Total
• kVAR
= 3 x kVAR
Total
4W) Power Parameters:
Total
+ kW + kW
1 2 3
(for balanced load cases only)
1
(for balanced load cases only)
1
(for balanced load cases only)
1
kW and kW
1, 2 3
is the summation of all three phase-to-neutral
(for both un-balanced and balanced load cases)
4W) systems, the system (total) power
12
Operation
4W) systems,
of each phase separately as